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A novel detection approach named chromophore-decolorizing with free radicals is developed for determination of trace heavy metal. The hydroxyl radicals (HO) generated from Fe(III) and hydrogen peroxide will oxidize the free chromophore into almost colorless products. The copper–acid chrome dark blue (ACDB) complexation was investigated at pH 5.07. In the presence of Fe(III) and hydrogen peroxide,...
Abstract.The competition coordination for selective determination (CCSD) is described and the complexations of Ti(IV) and Al(III) with o-chlorophenylfluorone (o-CPF) is studied at pH 4.5 in presence of Triton X-100. The determination of equilibrium constants of the complexes was made by the spectral correction technique in place of ordinary spectrophotometry. The complexes are formed as [Al(o-CPF)3]3...
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